Temperature-regulator.



I 1. 0. STEENSLAND.

TEMPERATURE REGULATOR.

APPLICATION FILED DEC. 8. 1914.

Patented Spt. 14, 1915.

minimum: 7

JAMES 0. STEENSLAND, F BLANCHARJDVILLE, WISCONSIN.

TEMPERATURE-REGULATOR.

To all whom it may concern Be it known that I, JAMES O. STEENsLAND, acitizen of the United States, residing at Blanchardville, in the countyof Lafayette and State of \Visconsin, have invented a new and usefulTemperature-Regulator, of which the following is a specification.

The device forming the subject matter of this application is atemperature operated means for draining a radiator or like structure,when the temperature falls, to the end that the radiator may not bebroken due to a freezing of its contents.

The present invention aims primarily to provide a novel form oftemperature actuated means for holding the valve against rotation.

Another object of the invention is to provide novel means for rotatingand controlling the action of the valve.

It is within the scope of the disclosure to improve generally andtoenhance the utility of devices of that type to which the presentinvention appertains.

With the above and other objects in view which will appear as thedescription pro-- ceeds, the invention resides in the combination andarrangement of parts and in the details of construction hereinafterdescribed and claimed, it being understood that changes in the preciseembodiment of the invention herein disclosed can be made within thescope of what is claimed without departing from the spirit of theinvention.

In the accompanying drawing: Figure 1 shows the invention in verticallongitudinal section; Fig. 2 is a bottom plan, the valve having beenshifted through an arc of 90; Fig. 3 is a section on the line 3-3 ofFig. 1; Fig. 4 is, anelevation of the valve; Fig. 5 is a fragmental sideelevation showing a portion of the casing and depicting particularly,the valve holding lug thereon} parts being shown in section.

In carrying out the invention there is provided a casing, the samecomprising a body 1 of circular contour, open at its inner end, theouter end of the body 1 being closed by a front plate 2 having aprojecting boss 3. Theinner end of the body is provided with acircumscribing rib 100 against which abuts a diaphragm 101, thediaphragm being yieldable and being adjusted by a screw 102 threadedinto' a bridge 103 extended across the casing. In the interior of thebody 1 there is a reservoir 4. Extended Specification of Letters Patent.

Application filed December 8, 1914. Serial No. 876,166.

Patented se t. 1%,1915.

longitudinally of the body 1 adjacent its bottom is a cylindricalpassage 5, opening into the reservoir 4 as shown at 6. Across theforward end of the passage 5 extends a wall 7 The boss 3 is providedwith a .bore 8. An inlet opening 10 establishes a communication with theinterior of the passage 5.

The body 1 is threaded as shown at 11 adj afitably. In the wall 7 thereis a port 12, the

wall 7 being provided with an opening 14.

Located within the passage 5 1s a longitudinally expansible andcontractible element 15 preferably in the form of a light metal tube,although it is not obligatory that metal be employed. The forward end ofthe tube 15 is closed and the rear end of the tube is open, the rear endof the tube being secured circumferentially as shown at 16 to the wallof the passage 5. The tube 15 preferably is corrugated as shown in thedrawings. In the bottom of the casing is threaded a closure lug 17 whichmay be sealed as shown at 1%. At its forward end, the expansible tubev15 is supplied with a finger 18 which passes through the opening 14 inthe wall 7 and enters the bore 8 in the boss 3.

Journaled for rotation in the bore 8 of the boss 3 is a valve 19. Thevalve 19 is a lateral extension 21. The lateral extension 21 at timesmay be lined up with the port 12 in the wall 7. Upon its upper end, thevalve 19 is provided with an eccentric lug 22 having a flat side. Theextremity of the finger 18 on the tube 15 lies against the flat side ofthe lug 22 and holds the valve 19 against rotating. When the valve isthus held, the extension 21 of the outlet passage in the valve 19 is outof alinement with the port 12 in the wall Adjacent its lower end, thevalve 19 is reduced in diameter to form a shoulder 23. A flange 24 isfashioned on the lower end of the boss 3,the flange cooperating with theshoulder to hold the valve 19 in lace in the bore 8. Surrounding thereduce lower end of the valve 19 is a coiled spring 25, one end of whichis secured as shown at 26 to the means for rotating the valve 19 whenthe finger '18 on the tube is retracted out of engagement with the lugor shoulder 22 on the valve.

At its lower end, the valve 19 may be bifurcated to form cars 27.Extended through the ears 2'? is a pivot element 28,

- one end of which is fashioned in a finger 29 adapted to operate withthe lug 30 on the lug 3. When the valve 19 is rotated by means of thespring 25 the finger 29 coacts with the lug 30 to prevent furtherrotation of the valve, the extension 21 of. the outlet passage in thevalve under such circumstances being lined up with the port 12 in the.wall 7. Pivotally supported on the element 28 is a latch, 32. The latch32 is frictionally held between theears 27 so that it 'will stand in anyosition to which it has been swung manually. In the lower end of the lug3 there is formed anotch 31. The valve 19 may be rotated by hand throughthe medium of the latch 32, and then the 1 latch 32 may be turned up toengage in the notch 31, under which circumstances, the valve will beheld against rotation.

In practical operation, .the reservoir 4 and the tube 15 are filled witha -li uid which freezes at a temperature which-is ow compared with thefreezing point of water. The liquid within the reservoir 4 and the tube15 may be inserted a plug 17, after which the .p ug is sealed as at-17.By manipulating the screw 102 a proper pressure maybe created within thereservoir 4 and the tube 15 by the movement of the diaphragm 101. Theextension 21 of the passage 20 in the valve 19 is disposed out ofalmemen-t with the port 12 in the wall 7 and the finger 18 on the tube15 lies against the fiat side of the lug 22 on the valve 19 to hold thevalve against rotating by the action of the spring 25. The liquid withinthe radiator or other structure wherewith the casing is assembled'isadapted to pass through the casing by way ofthe inlet '10, the interiorof the passage 5, the port 12,

the extension'passage 21 in the valve 19 and the passage proper 20 inthe valve, but when the parts are arranged as above described,

the ort 12 is closed by the valve.

enthe' body of hquid within the reservoir 4 and the tube 15 cools, thetube 15 contracts. By this operation, the finger 18 on the end of thetube 15 is retracted out of A engagement with the lug 22 on the valve 19removing the ment 29 and be brought into registration with the notch 31thus to hold the valve 19 positively against rotation.

Having thus described the invention, what is claimed is 1. In a deviceof the class described, a casing comprising a chamber and having apassage terminating in a port; a valve journaled in the casing andhaving a shoulder; the valve having an outlet adapted to communicatewith the port when the valve is rotated to a predetermined position;yieldable means for rotating the valve; a tubular, contractible elementcarried by the casing and'communicating with the chamber; and a fingeron the contractible element, the finger cooperating with the shoulder toprevent rotation of the valve and to maintain the outlet in the valveout of communication with the passage in the casing.

2. In a device of the class described, a casing comprising a chamber andhaving a passage terminating in a port; a valve journaled in the casingand having a shoulder, the valve having an outlet adapted to communicatewith the port when the valve is rotated to a predetermined position;yieldable means for rotating the valve; a tubular, contractible elementcarried by the casin and communicating with the chamber; a fingercarried by the contractible element, the finger cooperating with-theshoulder to prevent a rotation or} the valve and to maintain the outletin the valve out of communication with the port; and latch mechanismcooperating with the casingand the valve to hold the valve againstrotation.

3. In a device of the class described,'a casing comprising a chamberandhaving a passage terminating in a; ort; a valve 10111- naled in thecasing andaving a shoulder, the valve having anoutlet adapted tocommunicate with the port when the valve is rotated to a predeterminedosition; means for rotating the valve; a tu ular contractible elementcarried by the casing and communicating with the chamber; a fingermounted on the contractible element, the

finger cooperating with the shoulder to prevent a rotation of the valveand to maintain the outlet in the valve out of communication with thepassage; andmterengagmg elements on the valve and the casing forlimiting the rotation of the valve, thereby to aline the outlet in thevalve with the passage in the casing.

4. In a device of the class described, a casing comprising a chamberhaving an outlet; a valve controlling the outlet; a hollow contractiblemember communicating with the chamber, the chamber being provided withan'opening exposing the contractible member; interengaging elements onthe contractible member and the valve; a yieldable diaphragmconstituting a closure for theinmate? chamber; and means foradjustingthe diaphragm.

naled in the casing and having a shoulder;

the valve having an outlet adapted to com municate With the port whenthe valve is rotated to a predetermined position; yieldable means forrotating the valve; a tubular,

contractible element carried by, the casing and communicating with thechamber; a finger on the contractible element, the

finger cooperatingwith the shoulder to prevent a rotation of the valveand to maintain the outlet in the valve out of communication With thepassage in the casing; a latch pivoted to the valve; and means on thecasing for engaging the latch, the latch constituting means whereby thevalve may be rotated manually When the latch isout of engagement withthe said means.

In testimony that I claim the foregoing as my own, I have hereto affixedmy signature in the presence of two Witnesses.

inis o. STEENSLAND.

Witnesses: H. M. LIEN, E. R. JACKSON.

